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Post Posted: Wed Sep 01, 2010 4:39 am 
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i need to know the ratios neede to run 35 inch tyers on hilux bundarah diffs and what ratio is needed for the transfer case thanks :x

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Post Posted: Wed Sep 01, 2010 4:40 am 
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oh in my 87 sierra with vit 1600 carby motor

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Post Posted: Wed Sep 01, 2010 4:47 am 
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6.5's in the trans and 5.12 in the diff , Cheers Paul.

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Post Posted: Wed Sep 01, 2010 6:04 am 
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5.29 ratio for the bundy diffs as they are toyota,

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Post Posted: Wed Sep 01, 2010 6:10 am 
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MART wrote:
6.5's in the trans and 5.12 in the diff , Cheers Paul.
will thiss be super slow in low range

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Post Posted: Wed Sep 01, 2010 6:36 am 
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Yes.

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Post Posted: Wed Sep 01, 2010 6:58 am 
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first gear 3.65
low range 6.5
diff ratio 5.29
equals 125.05 reduction

so at 2000 rpm your rear wheels will be doing 16 revolutions per minute
assuming that a 35 inch tyre has a diameter of 2793mm that means your car will travel 44688mm (44.688 metres) per minute or 2681280mm (2681.280metres) per hour which equals 2.68 km/h

That is really slow enough. That is slower than walking pace.

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Post Posted: Wed Sep 01, 2010 7:07 am 
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TZAR wrote:
first gear 3.65
low range 6.5
diff ratio 5.29
equals 125.05 reduction

so at 2000 rpm your rear wheels will be doing 16 revolutions per minute
assuming that a 35 inch tyre has a diameter of 2793mm that means your car will travel 44688mm (44.688 metres) per minute or 2681280mm (2681.280metres) per hour which equals 2.68 km/h

That is really slow enough. That is slower than walking pace.


thanks for ur help

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Post Posted: Wed Sep 01, 2010 8:10 am 
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or the more common 4.88 diff gears

unless you are still using the bunderea front which is hi-pinion, finding 4.88 hi-pinion is harder

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Post Posted: Wed Sep 01, 2010 8:25 am 
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TZAR wrote:
first gear 3.65
low range 6.5
diff ratio 5.29
equals 125.05 reduction

so at 2000 rpm your rear wheels will be doing 16 revolutions per minute
assuming that a 35 inch tyre has a diameter of 2793mm that means your car will travel 44688mm (44.688 metres) per minute or 2681280mm (2681.280metres) per hour which equals 2.68 km/h

That is really slow enough. That is slower than walking pace.


but you do have 5 gears :wink: :)

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Post Posted: Wed Sep 01, 2010 10:48 am 
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i had 1.6l carby
5 speed
6:1 xfer
5.29 diffs
37" tyres

revved - 4000 rpm @ 100kph

worked well, same as above there is five gears and about 6500 rpm to play with!

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Post Posted: Wed Sep 01, 2010 10:57 am 
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My bundy diffs were 4.55 with HP front. With 36's and auto it was fine. Standard 75 series transfer gears.

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